I'm having pretty inconsistent results; probably around 60% of the time e-mails are being received and points posted.
I also find the emails to be inconsistent. I did an apple purchase last week and didn't get any email, it was substantial so hoping the points are credited properly. I've used it for a fair bit of my online shopping and usually works well.
Very flaky service for me. Apple Watch band went through, the Apple Watch itself ordered at same time didn't. Sometimes I get confirmation emails after purchase, sometimes not. Constantly scanning the balance to be sure all purchases have been picked up, then having to ring Qantas, then email receipts to prove my purchase - is becoming a real pain!